PHOTOFISSION OF 238U INDUCED BY A QUASI-MONOCHROMATIC, COMPTON BACKSCATTERED γ BEAM

被引：0

作者：

Csige, L. ^{[1
,2
]}

Filipescu, D. M. ^{[3
]}

Gulyas, J. ^{[4
]}

Guenther, M. ^{[5
]}

Habs, D. ^{[5
]}

Karwowski, H. J. ^{[6
,7
]}

Krasznahorkay, A. ^{[4
]}

Rich, G. C. ^{[6
,7
]}

Thirolf, P. G. ^{[1
,2
]}

机构：

[1] Univ Munich, D-85748 Garching, Germany

[2] Excellence Cluster Universe, D-85748 Garching, Germany

[3] H Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[4] Hungarian Acad Sci, Inst Nucl Res, Debrecen, Hungary

[5] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[6] Univ N Carolina, Dep Phys & Astr, Chapel Hill, NC 27599 USA

[7] Triangle Univ Nucl Lab, Durham, NC 27708 USA

来源：

ACTA PHYSICA POLONICA B | 2013年 / 44卷 / 03期

关键词：

SUBTHRESHOLD PHOTOFISSION;

D O I：

10.5506/APhysPolB.44.643

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The photofission cross-section of U-238 was measured in the sub-barrier energy region as a function of the gamma energy using, for the first time, a monochromatic, high-brilliance, Compton backscattered gamma beam. This prototype experiment was performed at the HI gamma S gamma beam facility of the Duke University at Durham (North Carolina, US) using the U-238(gamma, f) reaction at a beam energy varied between E-gamma = 4.7-6.0 MeV and with an energy resolution of Delta E= 150-200 keV (Delta E/E approximate to 3%). The photofission cross-section was determined down to E* = 4.7 MeV. Indications of transmission resonances have been observed at excitation energies of E* = 5.1 and 5.6 MeV with moderate amplitudes. DOI:10.5506/APhysPolB.44.643

引用

页码：643 / 646

页数：4

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